--- alsa-lib-1.0.25/src/pcm/mask_inline.h
+++ alsa-lib-1.0.25.patched/src/pcm/mask_inline.h
@@ -20,6 +20,7 @@
  */
   
 #include <sys/types.h>
+#include <strings.h>
 
 #define MASK_INLINE static inline
 
